Hackernews posts about Quad9

Quad9 is a fast-growing public Domain Name System (DNS) provider that aims to offer an alternative to traditional DNS services by providing a free and open platform for users worldwide.

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  1. Introduction to Quad Trees (hypersphere.blog)
  2. Less Slow C++ (github.com)
  3. Dunbar's Number Is Quadratic (2020) (generativist.falsifiable.com)